Home / 18,573.12-25,631.52-10,190.08

Finding the Fourth Proportional to 18,573.12, 25,631.52 and 10,190.08

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Solution

The fourth proportional to 18,573.12, 25,631.52 and 10,190.08 is: 14,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.12 : 25,631.52 = 10,190.08 : x
  2. Step 2: Convert to fraction form
    18,573.12/25,631.52 = 10,190.08/x
  3. Step 3: Cross multiply
    18,573.12x = 25,631.52 × 10,190.08
  4. Step 4: Simplify right side
    18,573.12x = 261,187,239.32
  5. Step 5: Solve for x
    x = 261,187,239.32/18,573.12
  6. Step 6: Final answer
    x = 14,062.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.